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Your question
One client is 40% of my revenue and treats my team badly. Do I keep taking it or fire my biggest account?
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Across the lenses

3 patterns to sit with.

What the lenses had in common. Sharpest when a pattern names a tension you hadn’t fully named yourself — weakest when it summarises something you already know.

  1. 01 Warning

    You can't choose until you've priced the alternative

    Arthashastra's tribute is a leash, and BATNA explains why this feels like two bad options. Work out the exact runway without them. Under six months means the real project is diversification and buffer, and any confrontation before that is a risk rather than a decision.

    From Chanakya's Mandala BATNA — The Door You'll Walk Out Of

  2. 02 Opportunity

    Restructure before you terminate

    The octopus escapes through a gap the size of its beak because almost nothing about it is rigid. Contact routing, scope, escalation, a price reflecting the difficulty — ten changes short of ending it have never been proposed. Meanwhile Honda's adjacent market is sitting there, starved of the attention this account eats in firefighting.

    From The Octopus Honda's Super Cub

  3. 03 Warning

    Your team is already reading the answer

    Alexander rejected the constraint. This isn't only a revenue question — your people are learning what you'll protect them from, and you're paying that price now. Tell them the concentration honestly and ask what they'd want. Unwillingness to have that conversation is itself the finding.

    From The Gordian Knot

The substance

The five lenses themselves.

Often the sharpest provocation lives inside a single lens, not in the synthesis above. Skim them; one tends to land harder than the others.

Chanakya's Mandala

Map every actor as friend, enemy, or neutral — and act accordingly.

Read this lens

What this lens reveals

Kautilya's manual is unsentimental about dependency: a state whose survival rests on one ally has no foreign policy, only compliance. The tribute looks like income and functions as a leash. Forty per cent concentration is not a client relationship — it's a structural position in which every decision you make is pre-shaped by what they'll tolerate, including this one. Notice that you're not asking whether the treatment is acceptable. You're asking whether you can afford to mind.

Try this soon

Write down every decision in the past twelve months influenced by this account — pricing, hiring, which other work you turned down. The list is the real cost, and it's always larger than the revenue line suggests.

Go deeper three provocations to sit with
  1. How many decisions in the last year were shaped by not wanting to upset them?
  2. If they knew exactly how dependent you are, would their behaviour be different — and do they already know?
  3. What would you say to another business owner in this position?
About this lens what made this interesting to humanity

India, ~300 BCE · Chanakya (Kautilya)

Chanakya's Arthashastra, written around 300 BCE for the Mauryan court, maps statecraft as a series of concentric rings — your immediate neighbour is naturally your enemy; their neighbour, naturally your friend; the neutral state at the edge can be either. The strategist doesn't moralise about it; they read the geometry and act on it.

The principle: Most disputes happen between adjacent parties — same market, same field, same authority. The classmate, the competitor, the rival sibling. Allies are often one step removed. Before you treat someone as friend or enemy, ask where they sit in the geometry: adjacency tends to produce friction; distance tends to produce alignment. The map predicts the conflict before character does.

BATNA — The Door You'll Walk Out Of

Your strength is the door you're willing to walk out of.

Read this lens

What this lens reveals

Your alternative to this agreement determines everything about how you can behave inside it, and yours is currently undefined — which is why the situation feels binary. 'Keep taking it or fire them' is the shape a problem takes when you haven't priced the middle. With a genuine alternative in hand, a third option appears: renegotiating terms from a position where losing them is survivable rather than fatal.

Try this soon

Do not act until you know your runway without them, precisely. If it's under six months, your first project isn't firing them — it's building the buffer and the pipeline that make the conversation possible. Six months of deliberate diversification changes this from a crisis into a choice.

Go deeper three provocations to sit with
  1. How many months could the business survive if they left tomorrow? The actual number.
  2. What would it take to get that to twelve months, and how long would that take?
  3. If you had three months' more runway, would you be having this conversation differently?
About this lens what made this interesting to humanity

1981 · Roger Fisher, William Ury

Fisher & Ury: your power in any standoff is your Best Alternative To a Negotiated Agreement — what you'll do if this fails. Know it, improve it, and the other side's leverage shrinks.

The principle: You're never as trapped as the conflict makes you feel. Naming your walk-away converts a hostage situation back into a choice.

Honda's Super Cub

The product you didn't mean to sell becomes the company.

Read this lens

What this lens reveals

Honda's American breakthrough came from the small bikes their staff rode around town, not the large ones they'd targeted for years. The winnable market was adjacent to the one they were fighting for, and invisible until they stopped looking at the intended target. Businesses with one dominant client almost always have an under-served adjacent segment they've neglected precisely because the big account absorbs all the attention — including all the attention that would have been spent on finding it.

Try this soon

Take the next month's worth of the time this client consumes in firefighting and spend it on the adjacent segment instead. You need proof that other revenue exists before you can act, and that proof only comes from attention you're currently giving away.

Go deeper three provocations to sit with
  1. Which smaller clients have you under-served because this one takes priority?
  2. What work do you turn down or deprioritise, and is there a pattern in it?
  3. If you had 40% more capacity tomorrow, who would you sell it to — and why aren't you selling to them now?
About this lens what made this interesting to humanity

1959 · Soichiro Honda, American Honda Motor

Honda entered the US market in 1959 to sell big motorcycles. The little 50cc Super Cubs the staff rode around LA on errands kept attracting buyers; the Sears sporting-goods buyer asked about them. Honda shifted its whole strategy and sold half a million Super Cubs in five years. The product they had not been trying to sell became the company.

The principle: Watch what people actually try to buy from you. The product you intend to sell is a hypothesis; the product they want is data. When the data contradicts the intention, the data is right.

The Octopus

Intelligence with no center, in every arm.

Read this lens

What this lens reveals

An octopus escapes through a gap the size of its beak because the only rigid part of it is small — everything else reconfigures. Rigidity is what traps you, and the rigid thing here is the shape of the engagement: retainer, scope, who talks to whom, which of your people absorb the abuse. You've been treating the relationship as a single object to keep or discard when it's a set of arrangements, most of which have never been renegotiated since they were set.

Try this soon

Before the binary decision, list ten structural changes short of termination: contact routing, scope boundaries, response times, a named escalation path, a price that reflects the difficulty. Take the three that would most protect your team and propose them as a contract renewal. Most abusive client relationships have never once been formally structured.

Go deeper three provocations to sit with
  1. Which specific person on their side is the problem, and does all contact have to route through them?
  2. Could the work continue with you as the sole point of contact, shielding your team entirely?
  3. What would change if the engagement were restructured — fixed scope, defined hours, named escalation — rather than ended?
About this lens what made this interesting to humanity

timeless · octopuses

An octopus has two-thirds of its neurons distributed through its eight arms, not in its central brain. Each arm can solve problems semi-independently: tasting, gripping, exploring. The central brain coordinates but does not micro-manage. The octopus is intelligent at the periphery in a way no vertebrate is.

The principle: Distributed intelligence is not the same as centralised intelligence multiplied. Pushing real decision-making capability to the periphery — close to the sensors — produces behaviours that a central nervous system planning for every appendage cannot match.

The Gordian Knot

Stop untying it and cut.

Read this lens

What this lens reveals

Alexander refused the constraint that the knot had to be untied. The unexamined constraint here is that you must choose, alone, between two bad options, and that the choice is about money. It isn't only about money — your team is watching how much you'll tolerate on their behalf, and that answer is being recorded whether or not you ever make a decision. The cost of continuing is being paid already, in a currency you're not counting.

Try this soon

Ask your team directly what they'd want you to do, and tell them honestly what the revenue concentration is. You may find they'd accept a leaner year to be rid of it — and if you're not willing to have that conversation, that reluctance is itself the answer to the question you're asking.

Go deeper three provocations to sit with
  1. What are your team learning about what you'll protect them from?
  2. Who have you already lost over this, and did you record the real reason?
  3. If keeping this client costs you two good people in the next year, is it still 40% of revenue?
About this lens what made this interesting to humanity

-333 · Alexander the Great

An oracle had said whoever untied the Gordian Knot would rule Asia. The knot, lashed onto an ancient cart in the city of Gordium, was impossibly tangled and no one had managed. Alexander tried for a while, then drew his sword and cut through it. He conquered Asia. The original problem statement assumed only one move was permitted.

The principle: Some problems are unsolvable in the form they're presented because the form is part of the problem. Refusing the implicit rules — 'no, I'm not going to play by the constraint that has trapped everyone before' — turns the impossible into the trivial.

Also considered

Lenses ranked relevant but kept off the exploration — the runner-up reading. Each links to the lens itself, not an applied reading of your question.

  • Method

    Grow the Pie

    Stop splitting the pie and ask if you can bake a bigger one.

  • Myth

    Pachamama's Reciprocity

    Every take must be matched by a give, or the system stops giving.

  • Engineering

    The Andon Cord

    Make it safe to stop the line, or the fault ships anyway.

  • Method

    Separate the People from the Problem

    Argue against the problem, not across the table.

  • Military

    The Maginot Line

    Build a flawless defense for the war you already fought.

  • Business

    Pixar's Braintrust

    Tear the work apart without tearing the room apart.

  • Method

    De Bono's Six Thinking Hats

    Wear one mode of thinking at a time, in turn, deliberately.

  • Statecraft

    Lincoln's Team of Rivals

    Keep your opponents inside the tent.

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